Guava ( Psidium guajava ) fruits may be round, oval, elongated or pear-shaped. The flesh may be white, light-yellow, pink or salmon; with textures ranging from crunchy to pulpy. Guavas are generally sweet with an aromatic odour when ripe. The fruit has many seeds in the centre though seedless varieties are also available.

The guava grows on shrubs or small trees with spreading branches. The trees may grow to a height and spread of 6-9 m. Guava trees are not very long-lived (about 40 years) and may bear heavily for 15-25 years. Clonal trees often begin to bear fruit within the first year of planting. The guava bears fruit all year round.

Guava trees grow well in tropical conditions, though it can tolerate drought better than many tropical fruits. It is also adapted to many soil types and may thrive even on shallow, infertile soils.

Apart from being eaten fresh, guava juice is also an important product. Other main processed products are nectar, puree and preserves.